I live with my mom (who I'm out to) but want to be out (pansexual and nonbinary) with the rest of my family who live in different states. Any advice on how to accomplish that?

It honestly depends on your relationship with those individual people. Some people, it would be better to try and tell in person. Some would do best with a phone call. Some would do best with written communication - whether it be a text, email, or an actual letter. Maybe ask your mom how she thinks your family would most appreciate you coming out to them? She could be a very good resource in this situation. Also, remember that you are not required to give personal messages to everyone if you don't want to. One option is to tell the members of your family that you think it's important to tell yourself and then let the others find out through the grapevine (either through the family members you come out to or if you decide to publicly come out on, say, Facebook). Good luck!